So last year was my first year to breed and it was a 100% success 11 from 11 good eggs that led to 11 great young, but 4 of them turned out to be total hard heads when it came to feeding , I tried mouse and rat pups had them nice and warm sented them with chicks and still nothing in the end it came down to assist feeding . so anything I missed or any pointers and if all fails at what point do you start assist feeding?